I found this website after being driven mad by a Youtube camera tutorial. I'm glad to see that I wasn't imagining it. The link to the Penn research paper, shared by Cathy W. sheds some light on it. I believe its origin is with Polish immigrants in the early 20th Century, based in the Chicago area. The first time I ever heard this pronunciation is in the film "The Blues Brothers," which highlighted Chicago working-class speech patterns.
Pronouncing “str” like “shtr” as in “shtrong” “shtrange”
I found this website after being driven mad by a Youtube camera tutorial. I'm glad to see that I wasn't imagining it. The link to the Penn research paper, shared by Cathy W. sheds some light on it. I believe its origin is with Polish immigrants in the early 20th Century, based in the Chicago area. The first time I ever heard this pronunciation is in the film "The Blues Brothers," which highlighted Chicago working-class speech patterns.